Drier



Oct. 19, 1926.

DRIER 2 Sheets-Sheet Filed Dec. 5; 1923 W. M. SCHWARTZ DRIER heetsSheet nnan STATES (PATENT OFFICE;

WALIER M. SCHWRTZ OF PHILADELPHIA, PENNSYLVNA, ASSIGNOR T0 IROCOR & SCHWARIZ. 'INCORPORATED, 013 PHILDELPHIA, PENNSYLVNIA, A CORPORA- TION DE PENNSYLVNIA.

namza.

My invention relates to that type of clrier, in which the material to be dried is located within a clrying chamber in a casil.g 1I1 which heated air is circulted.

Tlie object of the invention is to prevent the heat of tl1e air in circulation being c011- clucted to the outer sicle of the casing. Casings of driers are now made of sheet metal supported by shaped iron framework. As heretoore constructecl. the room in Whlch tlie drier was located wonlcl becon1e warm from the radiation of the metal casing. This is objectionable, as heat is wasted un necessarily.

By my improvsment, the inner anclenter metallic sheets. forming the casing, are not connectecl. They are separated by a noncondnctingrsection, as fully described hercinafter.

ln tlie accompanying drawings:

Fig.. 1 is a vertical sectional view of a portion of a drier showing one of the panels removcd;

Fig. 2 is a sectional plan view of a portion of the clrier, illustrating the clamp for holdingthe panels to the frame;

Fig. 3 is a detached, sectional, perspective view, showing; a portion of the trame, a sicle panel, and a top panel; and

Fig. 4 is a view=illnstrating a modification of the invention.

The invention is particularly aclaptgd for use in connection.with a drier having a drying chamber and a heating chamler, separated by a partition, in which are openings to allow for the circulation of air with in tlie casing. ln one of the openings there is a ciioulating tan. which is mountecl on a tlriven Shaft which entends through an opening 7 in the casing. 8 clesignates the frame et the casing ami 9 designates the detachable panels.

While the alaove clescniption relates to one tOrm of drier, it will be unolerstoocl that the invention can loe appliecl to any forte et drie1" in which ait le causecl to circnlate Within a drying chamber.

'll1e clrier l1as vertical corner members 10 ancl intermecliate uprights 11 anal 12 that entend from the base 13 to the root memloerts 14L. At the front o:t tl1e cltier are floors 15. 111 the baek upright 12 is tlae opening '1" for the tan shalt 6, Whieh is carried b 7 snitalle laearings. Ihe aide memHrs 14 et the roof are connected to transverse members l6. At thef1ont and back=are transverse Inembers 17.

The panels are designed to fit the openings between the members of the trame 8, forming a complete enc osure. The corner members 10 are made of two strips et sheet metal 18 and 18. shaped in cross section as shown in Fig. 6. Between the two inetal connectecl strips et sheet nietl22 and 9.2

and a molclecl non-conclncting section 24:. The ends of the two metal strips are spacecl apart at the shoulclers. horizontal sections et the frame are macle in the same manner as the corner sections, only the shoulclers are at the eclges of the sections. The panels are made of sheets of metal pressed in shape. The enter plates 25 have ontturnecl anges at the eclges, and a trame 26, having inturned ilanges, le se cured thereto by welcling. The inturnecl fianges enclose the offset edges ol the non conducting material 27'. The inner plates are flangecl et the edges, as shown. but the fianges of the frame are spacecl fiom those of the inner plate. The plates are securecl to the non-conducting material by screws 28.

A strip 29 of non-conclncting material. snob aspork, is placed on the shonlclers et the trame ancl is secured thereto by any snitable aclhesive. The panels are then placecl in position, the shoulclers o:t tl1e panels resting on the nonconductinp; strips 29. Suitalale clamps, such as shown at 30., may lue nsecl to secure the panels detachaloly to the trame. '1he heaclsot the bolts of the clamps may be embeclcled in the nonconducting material, as shown in Fig. 2.

ln sonne instances, throngh bolts 31 maybe nsed. as in lflig. 4.-, to connect t l1e inner ancl enter plates. A non-eonclncting sleete 'neiy be mountecl lnetween tl1a boite and one.

The vertical ancl v or both plates. In this instance, the bolts of the clamps extend through both plates and the non-conducting material. It has been fonnd that, when the inner and enter plates are connected at the edges, the heat of the inner plates passes to the outer plates. By spacing the plates at the edges, even with the use of through bolts, the outer plates are kept comparatively cool.

I claim:

1. The combination in a drier, of a cas?ng made of a series of sections, each section having inner and outer inetallic' plates spaced apart and having non-conductive n1aterial in the spaces, the edges of the sections being offset so that one section overlaps an adjoinin; section, the edges of the inner and onter plates of each section being disconnected at the oflsets; and nonconducting strips placed between the sections at the offsets, preventing the heat of the inner plates being transmitted to the onter plates.

2. The combination in a chier; of a frame made of inner and enter pressed sheet metal strips and non-conducting material, the sec tions having offset edges so that one section overlaps an adjoining section, the inner and outer strips of each section being disconnected at the offset edges, exposing non-conducting material, withstrips of non-conducting rnaterial at the joints where one section overlaps an adjoining section; and means for holding the sections in position.

3. The combination in a dryix1g apparatus, of a casing enclosing a drying chamber, said casing being made of fixed and movable sections, each fixed section consisting of inner and onter plates and intermediate nonconducting material, said fixed sections ha\ ing projecting flanges at the inner sides of the sections; the inner and outer plates of the fixed sections being spaced apart at the flanges; removable panels made of inner and outer plates and intermediate non-condncting material, the panels having enter flanges arranged t0 overlap those of the fixed sections. the inner and outer plates et the panels being spaced apart at this point; and non-conducting material located betwecn the two fianges of the fixed and movable sections.

4. The combination in a drier, of a frame consisting of inner and outer metallic plates and interxnediate non-conducting material, said f1ame having openings; detachable panels located in the openings, each panel consisting of inner and enter plates and intermediate non-condncting material, the abutting: edges of t1e frame and panels being offset to form shoulders, the inner and outer plates et the frame and panels being spaced apart at the shoulders so that the heat of the inner plates Will not be transmitted to the outer plates; and means for holding the panels to the frame.

WALTER M. SCHWAR1Z. 

